In December 2020, the Company acquired three life science facilities in Cambridge, Massachusetts for $610 million and a 49% unconsolidated joint venture interest in a fourth property on the same campus for $54 million. If the fourth property is sold in a taxable transaction, the Company is generally obligated to indemnify its joint venture partner for its federal and state income taxes associated with the gain that existed at the time of the contribution to the joint venture.

In October 2020, the Company executed a definitive agreement to acquire approximately 12 acres of land for $128 million. The acquisition site is located in South San Francisco, California, adjacent to two sites currently held by the Company as land for future development. The Company made a $10 million nonrefundable deposit upon completing due diligence in November 2020 and expects to close the transaction in 2021.

In October 2020, the Company acquired the remaining 15% equity interest of a senior housing joint venture structure (which owned one senior housing facility), in which the Company previously held an unconsolidated equity investment, for $4 million. Subsequent to acquisition, the Company owned 100% of the equity, began consolidating the facility, and recognized a gain upon change of control of $6 million, which is recorded in other income (expense), net within income (loss) from discontinued operations. In December 2020, the Company sold the property as part of the Atria SHOP Portfolio disposition discussed in Note 5.

In November 2020, as part of the dissolution of a senior housing joint venture, the Company was distributed one property, one land parcel, and $11 million in cash. Upon consolidating the property and land parcel at the time of distribution, the Company recognized a loss upon change of control of $16 million, which is recorded in other income (expense), net within income (loss) from discontinued operations. The property is classified as held-for-sale as of December 31, 2020.

In conjunction with the distribution of the property, the Company assumed $36 million of secured mortgage debt which was recorded at its fair value through asset acquisition accounting.

During the first quarter of 2019, the Company acquired a life science facility for $71 million and development rights at an adjacent undeveloped land parcel for consideration of up to $27 million. The existing facility and land parcel are located in Cambridge, Massachusetts.

In April 2019, the Company acquired a portfolio of nine senior housing properties for $445 million. The properties are located across Florida, Georgia, and Texas and are operated by Discovery Senior Living, LLC.

In May 2019, the Company acquired three senior housing communities in California for $113 million and in July 2019, the Company acquired an additional five senior housing communities for $284 million. Both portfolios were acquired from and continue to be operated by Oakmont Senior Living LLC (“Oakmont”). Each portfolio was contributed to a DownREIT joint venture in which the sellers received non-controlling interests in lieu of cash for a portion of the sales price. The Company consolidates each DownREIT joint venture.

As part of the May and July 2019 Oakmont transactions, the Company assumed $50 million and $112 million, respectively, of secured mortgage debt, both of which were recorded at their relative fair values through asset acquisition accounting.

In June 2019, the Company acquired two life science buildings in South San Francisco, California adjacent to the Company’s The Shore at Sierra Point development, for $245 million.

In June 2019, the Company acquired the outstanding equity interests of a senior housing joint venture structure (which owned one senior housing facility), in which the Company previously held an unconsolidated equity investment, for $24 million. Subsequent to acquisition, the Company owned 100% of the equity. Upon consolidating the facility at acquisition, the Company derecognized the existing investment in the joint venture structure, marked the real estate to fair value (using a relative fair value allocation), and recognized a gain upon change of control of $12 million, net of a tax impact of $1 million. The gain upon change of control is recognized within other income (expense), net and the tax impact is recognized within income tax benefit (expense).

In July 2019, the Company acquired a life science campus in the suburban Boston submarket of Lexington, Massachusetts, for $228 million. The campus is comprised of four buildings.

In December 2019, the Company acquired one life science building, adjacent to the Company’s existing properties in Cambridge, Massachusetts, for $333 million.

In December 2019, the Company formed a new joint venture (the “SWF SH JV”) with a sovereign wealth fund that owns 19 SHOP assets operated by Brookdale. The Company owns 53.5% of the SWF SH JV and contributed all 19 assets with a fair value of $790 million. The SWF SH JV partner owns the other 46.5% and purchased its interest for $367 million. Upon formation of the SWF SH JV, the Company recognized its retained equity method investment at fair value, deconsolidated the 19 SHOP assets, and recognized a gain upon change of control of $161 million, which is recorded in other income (expense), net.

During the year ended December 31, 2019, the Company acquired one MOB in Kansas for $15 million, one MOB in Texas for $9 million, and one life science building in the Sorrento Mesa submarket of San Diego, California for $16 million.

The following table summarizes the Company’s expenditures for construction, tenant and other capital improvements, excluding expenditures related to properties classified as discontinued operations (in thousands):


	Year Ended December 31,
Segment	2020		2019		2018
Life science	$	573,999	$	499,956	$	396,431
Medical office	173,672		146,466		146,087
CCRC	41,224		—		—
Other	—		30,852		18,357
	$	788,895	$	677,274	$	560,875